X0306 4 2022-02-18 0 0001325702 MAGNACHIP SEMICONDUCTOR Corp MX 0001812684 Park Chan Ho C/O MAGNACHIP SEMICONDUCTOR, LTD. 501, TEHERAN-RO, GANGNAM-GU SEOUL, REPUBLIC OF KOREA M5 06168 KOREA, REPUBLIC OF 0 1 0 0 See Remarks Common Stock 2022-02-18 4 A 0 3088 0.00 A 23123 D Common Stock 2022-02-18 4 F 0 646 18.78 D 22477 D This transaction reflects shares of common stock issued in connection with the vesting of financial performance-based restricted stock units granted on February 19, 2021. This represents the withholding by the Issuer of 646 shares of common stock to satisfy tax withholding obligations incurred by the Reporting Person upon the vesting of 3,088 shares of common stock issued in connection with the vesting of financial performance-based restricted stock units granted on February 19, 2021. General Manager of Power Solutions /s/ Theodore Kim, Attorney-in-Fact 2022-02-23